Granted Patent
Utility
US 5,024,764 · App. 07/325,245
Method of making a composite filter
Inventor:
Thomas Holler
Patented Case
View Patent ↗
Granted: Jun 18, 1991
Filed: Mar 17, 1989
Inventor
Thomas Holler
Assignee (at issue)
Ametek, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.